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فرآیند و کارکرد گیاهی، جلد ۱۳، شماره ۶۱، صفحات ۴۵-۵۴
عنوان فارسی
چکیده فارسی مقاله
Coriander (Coriandrum sativum L.) is used as an aromatic and medicinal vegetable. Plant growth regulators improve plant performance under unfavorable conditions. In this study, the interaction effects of 24-epibrassinolide (0, 0.5 and 1 µM) and three levels of drought stress (-2, -3.5 and -4.5 bars) were investigated on growth parameters and coriander leaves essential oil. The highest main stem length, diameter, shoot fresh weight, and shoot dry weight were obtained by 0.5 µM of 24-epibrassinolide (EBR) under -3.5 bar. Both 0.5 and 1 µM concentrations of 24-epibrassinolide protected leaves of chlorophyll a and b against the effects of water deficit. The plants under -3.5 and -4.5 bar water deficits showed more leaf electrolyte leakage compared to the control (-2 bar). The highest percentage of all six measured essential oil components (linalool, (e)-2-decenal, 2-hexa-decenal, carvone, α-pinene and (E)-2-dodecenal) were obtained under moderate and severe levels of regulated water deficit. Foliar spray of EBR 0.5µM under severe drought stress with -4.5 bar of matric potential increased the main essential oil compositions such as linalool, (E)-2-decenal and (E)-2-hexa-decenal.
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی 24-epibrassinolide improves the growth and essential oil of coriander leaves (Coriandrumsativum L.) under drought stress
چکیده انگلیسی مقاله Coriander (Coriandrum sativum L.) is used as an aromatic and medicinal vegetable. Plant growth regulators improve plant performance under unfavorable conditions. In this study, the interaction effects of 24-epibrassinolide (0, 0.5 and 1 µM) and three levels of drought stress (-2, -3.5 and -4.5 bars) were investigated on growth parameters and coriander leaves essential oil. The highest main stem length, diameter, shoot fresh weight, and shoot dry weight were obtained by 0.5 µM of 24-epibrassinolide (EBR) under -3.5 bar. Both 0.5 and 1 µM concentrations of 24-epibrassinolide protected leaves of chlorophyll a and b against the effects of water deficit. The plants under -3.5 and -4.5 bar water deficits showed more leaf electrolyte leakage compared to the control (-2 bar). The highest percentage of all six measured essential oil components (linalool, (e)-2-decenal, 2-hexa-decenal, carvone, α-pinene and (E)-2-dodecenal) were obtained under moderate and severe levels of regulated water deficit. Foliar spray of EBR 0.5µM under severe drought stress with -4.5 bar of matric potential increased the main essential oil compositions such as linalool, (E)-2-decenal and (E)-2-hexa-decenal.
کلیدواژه‌های انگلیسی مقاله 24-epibrassinolide, Coriander essential oils, Linalool, drought stress
نویسندگان مقاله | Neda Amiri
Department of Horticultural Sciences, Faculty of Agriculture, ShahidBahonar University of Kerman, Kerman, Iran


| Najmeh Zeinalipour
Department of Horticultural Sciences, Faculty of Agriculture, ShahidBahonar University of Kerman, Kerman, Iran


| Zahra Pakkish
Department of Horticultural Sciences, Faculty of Agriculture, ShahidBahonar University of Kerman, Kerman, Iran
نشانی اینترنتی http://jispp.iut.ac.ir/browse.php?a_code=A-10-557-3&slc_lang=en&sid=1
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